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raptorial adj。 Seizing and devouring living prey。
ration v。 To provide with a fixed allowance or portion； especially of food。
rationalism n。 The formation of opinions by relying upon reason alone； independently of authority。
raucous adj。 Harsh。
ravage v。 To lay waste by pillage； rapine； devouring； or other destructive methods。
ravenous adj。 Furiously voracious or hungry。
ravine n。 A deep gorge or hollow； especially one worn by a stream or flow of water。
reaction n。 Tendency towards a former； or opposite state of things； as after reform； revolution； or inflation。
reactionary adj。 Pertaining to； of the nature of； causing； or favoring reaction。
readily adv。 Without objection or reluctance。
readjust v。 To put in order after disarrangement。
ready adj。 In a state of preparedness for any given purpose or occasion。
realism n。 The principle and practice of depicting persons and scenes as they are believed really to exist。
rearrange v。 To arrange again or in a different order。
reassure v。 To give new confidence。
rebellious adj。 Insubordinate。
rebuff n。 A peremptory or unexpected rejection of advances or approaches。
rebuild v。 To build again or anew。
rebut v。 To oppose by argument or a sufficient answer。
recant v。 To withdraw formally one's belief （in something previously believed or maintained）。
recapitulate v。 To repeat again the principal points of。
recapture v。 To capture again。
recede v。 To move back or away。
receivable adj。 Capable of being or fit to be received … often money。
receptive adj。 Having the capacity； quality； or ability of receiving； as truths or impressions。
recessive adj。 Having a tendency to go back。
recidivist n。 A confirmed criminal。
reciprocal adj。 Mutually interchangeable or convertible。
reciprocate v。 To give and take mutually。
reciprocity n。 Equal mutual rights and benefits granted and enjoyed。
recitation n。 The act of reciting or repeating； especially in public and from memory。
reck v。 To have a care or thought for。
reckless adj。 Foolishly headless of danger。
reclaim v。 To demand or to obtain the return or restoration of。
recline v。 To cause to assume a leaning or recumbent attitude or position。
recluse n。 One who lives in retirement or seclusion。
reclusory n。 A hermitage。
recognizance n。 An acknowledgment entered into before a court with condition to do some particular act。
recognize v。 To recall the identity of （a person or thing）。
recoil v。 To start back as in dismay； loathing； or dread。
recollect v。 To recall the knowledge of。
reconcilable adj。 Capable of being adjusted or harmonized。
reconnoiter v。 To make a preliminary examination of for military； surveying； or geological purposes。
reconsider v。 To review with care； especially with a view to a reversal of previous action。
reconstruct v。 To rebuild。
recourse n。 Resort to or application for help in exigency or trouble。
recover v。 To regain。
recreant n。 A cowardly or faithless person。
recreate v。 To refresh after labor。
recrudescence n。 The state of being raw or sore again。
recrudescent adj。 Being raw or sore again。
recruit v。 To enlist men for military or naval service。
rectify v。 To correct。
rectitude n。 The quality of being upright in principles and conduct。
recuperate v。 To recover。
recur v。 To happen again or repeatedly； especially at regular intervals。
recure v。 To cure again。
recurrent adj。 Returning from time to time； especially at regular or stated intervals。
redemption n。 The recovery of what is mortgaged or pledged； by paying the debt。
redolent adj。 Smelling sweet and agreeable。
redolence n。 Smelling sweet and agreeable。
redoubtable adj。 Formidable。
redound n。 Rebound。
redress v。 To set right； as a wrong by pensation or the punishment of the wrong…doer。
reducible adj。 That may be reduced。
redundance n。 Excess。
redundant adj。 Constituting an excess。
reestablish v。 To restore。
refer v。 To direct or send for information or other purpose。
referrer n。 One who refers。
referable adj。 Ascribable。
referee n。 An umpire。
refinery n。 A place where some crude material； as sugar or petroleum； is purified。
reflectible adj。 Capable of being turned back。
reflection n。 The throwing off or back of light； heat； sound； or any form of energy that travels in waves。
reflector n。 A mirror； as of metal； for reflecting light； heat； or sound in a particular direction。
reflexible adj。 Capable of being reflected。
reform n。 Change for the better。
reformer n。 One who carries out a reform。
refract v。 To bend or turn from a direct course。
refractory adj。 Not amenable to control。
refragable adj。 Capable of being refuted。
refringency n。 Power to refract。
refringent adj。 Having the power to refract。
refusal n。 Denial of what is asked。
refute v。 To prove to be wrong。
regale v。 To give unusual pleasure。
regalia n。 pl。 The emblems of royalty。
regality n。 Royalty。
regenerate v。 To reproduce。
regent n。 One who is lawfully deputized to administer the government for the time being in the name of the ruler。
regicide n。 The killing of a king or sovereign。
regime n。 Particular conduct or administration of affairs。
regimen n。 A systematized order or course of living with reference to food； clothing and personal habits。
regiment n。 A body of soldiers。
regnant adj。 Exercising royal authority in one's own right。
regress v。 To return to a former place or condition。
regretful adj。 Feeling； expressive of； or full of regret。
rehabilitate v。 To restore to a former status； capacity； right rank； or privilege。
reign v。 To hold and exercise sovereign power。
reimburse v。 To pay back as an equivalent of what has been expended。
rein n。 A step attached to the bit for controlling a horse or other draft…animal。
reinstate v。 To restore to a former state； station； or authority。
reiterate v。 To say or do again and again。
rejoin v。 To reunite after separation。
rejuvenate v。 To restore to youth。
rejuvenescence n。 A renewal of youth。
relapse v。 To suffer a return of a disease after partial recovery。
relegate v。 To send off or consign； as to an obscure position or remote destination。
relent v。 To yield。
relevant adj。 Bearing upon the matter in hand。
reliance n。 Dependence。
reliant adj。 Having confidence。
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